I just remember she never took her bra off. My guess is her implants at that time weren't very good, as she didn't really have money yet.
Also, the male in the video was Ray-J, an aspiring rapper who was trying to jumpstart a career piggybacking off of his sister (Brandi) who had a pretty good run in the early 2000s as a pop singer and a TV sitcom.
Clearly it was a publicity stunt of 2 people trying to jumpstart careers as a celebrity, and it worked for one of them much better than the other.